Hi,
The sample in the readme works for most platforms but not windows:
https://github.com/mtb-tools/vscode-mono-workspace/actions/runs/3269716040

This part is the culprit:
- name: Get pnpm store directory
id: pnpm-cache
run: |
echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT